<template>
  <div>
    <div :id="echarts" :style="styles"></div>
  </div>
</template>

<script>
import * as echarts from 'echarts';

export default {
  name: 'index',
  props: {
    // styles: {
    //   type: Object,
    //   default: null
    // },
    seriesData: {
      type: Array,
      default: () => []
    },
    xAxis: {
      type: Array,
      default: () => []
    },
    echartsTitle: {
      type: String,
      default: ''
    },
    yAxisData: {
      type: Array,
      default: () => []
    },
    legendData: {
      type: Array,
      default: () => []
    }
  },
  data() {
    return {
      styles: 'height:300px',
      infoLists: this.infoList,
      seriesArray: this.seriesData,
      myChart:null,
    }
  },
  watch: {
    seriesData: {
      handler(newVal, oldVal) {
        this.seriesArray = newVal;
        this.handleSetVisitChart();
      },
      deep: true // 对象内部属性的监听，关键。
    }
  },
  computed: {
    echarts() {
      return 'echarts' + Math.ceil(Math.random() * 100)
    }
  },
  mounted: function () {
    const vm = this
    vm.$nextTick(() => {
      vm.handleSetVisitChart();
      window.addEventListener('resize', this.wsFunc)
    })
  },
  methods: {
    wsFunc() {
      this.myChart.resize()
    },
    handleSetVisitChart() {
      this.myChart = echarts.init(document.getElementById(this.echarts))
      let option = null
      if (this.echartsTitle === 'circle') {
        option = {
          tooltip: {
            trigger: 'item',
            formatter: '{a} <br/>{b} : {c} ({d}%)'
          },
          color:['#26c6ff','#fdd22d','#ff8e86','#898ced','#fda865'],
          legend: {
            orient: 'vertical',
            left: 'left',
            //data: this.legendData || []
          },
          series: [
            {
              name: '分类',
              type: 'pie',
              radius: '70%',
              center: ['50%', '60%'],
              data: this.seriesArray || [],
              emphasis: {
                itemStyle: {
                  shadowBlur: 10,
                  shadowOffsetX: 0,
                  shadowColor: 'rgba(0, 0, 0, 0.5)'
                }
              }
            }
          ]
        };
      } else {
        option = {
          tooltip: {
            trigger: 'axis'
          },
          toolbox: {},
          legend: {
            data: this.legendData || []
          },
          color: ['#1495EB', '#00CC66', '#F9D249', '#ff9900', '#9860DF'],
          grid: {
            left: 16,
            right: 25,
            bottom: 10,
            top: 40,
            containLabel: true
          },
          xAxis: [
            {
              type: 'category',
              axisLine: {
                lineStyle: {
                  color: '#D7DDE4'
                }
              },
              axisTick: {
                alignWithLabel: true,
                lineStyle: {
                  color: '#D7DDE4'
                }
              },
              splitLine: {
                show: false,
                lineStyle: {
                  color: '#F5F7F9'
                }
              },
              // axisPointer: {
              //     type: 'shadow'
              // },
              axisLabel: {
                interval: 0,
                rotate: 40,
                textStyle: {
                  color: '#7F8B9C'
                }
              },
              data: this.xAxis
            }
          ],
          yAxis: this.yAxisData.length?this.yAxisData:{
            axisLine: {
              show: false
            },
            axisTick: {
              show: false
            },
            axisLabel: {
              textStyle: {
                color: '#7F8B9C'
              }
            },
            splitLine: {
              show: true,
              lineStyle: {
                color: '#F5F7F9'
              }
            },
            type: 'value'
          },
          series: this.seriesArray
        };
      }
      // 基于准备好的dom，初始化echarts实例
      this.myChart.setOption(option, true)
    },
    handleResize() {
      this.myChart.resize()
    }
  },
  beforeDestroy() {
    window.removeEventListener('resize', this.wsFunc)
    if (!this.myChart) {
      return
    }
    this.myChart.dispose()
    this.myChart = null
  }
}
</script>

<style scoped>

</style>
